US3500145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin vapor-deposited metal film voltage regulator
Assignee: United States Department of the Navy
•
Filing: 1967-03-01
•
Granted: 1970-03-10
•
Expires: 1987-03-01
Abstract
No abstract record available.
Inventors
- 👤 Robert D Hitchcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:26
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3615; C03C17/3649; C03C17/3668; C03C17/3671; C23; C23C; C23C28/00; Y; Y10; Y10S; Y10S438/00; Y10S438/957
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2822606A
Cited
DE1177253B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |